1110123221112 has 40 divisors (see below), whose sum is σ = 3109372912800. Its totient is φ = 370041073488.

The previous prime is 1110123221083. The next prime is 1110123221131. The reversal of 1110123221112 is 2111223210111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 856575912 + ... + 856577207.

It is an arithmetic number, because the mean of its divisors is an integer number (77734322820).

Almost surely, 2^{1110123221112} is an apocalyptic number.

1110123221112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1110123221112 is an abundant number, since it is smaller than the sum of its proper divisors (1999249691688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1110123221112 is a wasteful number, since it uses less digits than its factorization.

1110123221112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1713153137 (or 1713153124 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 1110123221112 its reverse (2111223210111), we get a palindrome (3221346431223).

The spelling of 1110123221112 in words is "one trillion, one hundred ten billion, one hundred twenty-three million, two hundred twenty-one thousand, one hundred twelve".